HID灯电极温度特性仿真与优化设计  

Stimulation and optimization design of electrode temperature characteristic for HID lamp

作　　者：巩媛 程为彬[1] 郭颖娜[1] 雷芳 

机构地区：[1]西安石油大学电子工程学院,陕西西安710065 [2]图卢兹国立理工大学Laplace实验室,法国图卢兹31071

出　　处：《现代电子技术》2018年第4期92-95,100,共5页Modern Electronics Technique

基　　金：陕西省教育厅重点实验室科研计划项目(15JS083);西安石油大学全日制研究生创新基金项目(2015cx140322)

摘　　要：高强度气体放电(HID)灯电极温度特性对其寿命有显著的影响,在分析HID灯物理过程和典型结构的基础上,建立了HID灯物理模型,对HID灯电极温度分布进行了仿真。与实验测量的温度特性进行对比验证了该模型的正确性,更重要的是得到了电极结构与温度分布的关系。电极的温度随电极长度的增加而升高,而随电极半径的增大而降低。电极半径为0.3 mm,电极长度为20 mm时,电极上的温度分布较合理。研究成果对HID灯长期稳定运行具有较高的参考价值。The electrode temperature characteristic of high intensity discharge(HID)lamp has a serious impact on the life of the lamp. The physical model of HID lamp is established on the basis of the analysis of the physical process and typical structure of HID lamp. The simulation for the electrode temperature distribution of HID lamp is conducted. The validity of the model is verified by comparing with the temperature characteristic tested out by the experiment. More importantly,the relationship between the structure of the electrode and the temperature distribution is obtained. The temperature of the electrode rises as its length increases and decreases as its radius increases. When the radius of the electrode is 0.3 mm and the length of the electrode is 20 mm,the electrode has appropriate temperature distribution. The research results have a high reference value for long and stable operation of HID lamp.

关 键 词：高强度气体放电灯 物理模型 温度特性 电极 COMSOL 仿真分析 

分 类 号：TN373.34[电子电信—物理电子学]